摘要
为探索皖江流域水稻生长发育与营养特性对锌肥的响应,在安徽省宣城市设置不施肥(CK)、农民习惯施肥(FFP)、在农民习惯施肥的基础上分别施锌肥(ZnSO_(4)·7H_(2)O)20和40 kg/hm^(2)(FFP+Zn20和FFP+Zn40)4个处理的水稻田间小区试验,研究锌肥对水稻生长、产量和养分吸收的影响。结果表明,与FFP相比,FFP+Zn20和FFP+Zn40增加了水稻千粒重和结实率,其中FFP+Zn40水稻千粒重和结实率的增幅达到显著水平(P<0.05);FFP+Zn40显著增加了水稻产量和净收益,增幅分别为14.5%和15.6%。氮锌配施,有利于水稻成熟期叶、茎鞘和穗的氮、锌含量的增加,其中FFP+Zn40的增幅最高。增施锌肥有利于该区域水稻增产增收和提质,施用N、P_(2)O_(5)、K_(2)O各164、54、126 kg/hm^(2),配合基肥土施锌肥40 kg/hm^(2)的效果最优。
In order to explore the response of rice growth,development,and nutritional characteristics to zinc fertilizer in the Yangzi River Basin.Field experiment with four plots were set up with no fertilizer(CK),farmers’customary fertilizer practice(FFP)and zinc fertilizer(ZnSO_(4)7H_(2)O)of 20 and 40 kg/hm^(2)(FFP+Zn20,FFP+Zn40)based on FFP to study the effects of zinc fertilizer on rice growth,yield,and nutrient absorption.The results showed that compared with FFP,FFP+Zn20 and FFP+Zn40 increased 1000-grain weight and seed-setting rate of rice,with FFP+Zn40 achieving a significant increase in the 1000-grain weight and seed-setting rate(P<0.05).The yield and net benefit of FFP+Zn40 were the highest in the four treatments,increasing significantly by 14.5%and 15.6%compared with FFP.The combined application of N and Zn is beneficial for the increase of N and Zn content in the leaves,stems,sheaths,and panicles of rice at maturity,with FFP+Zn40 having the highest increase.Increasing the application of zinc fertilizer is beneficial for increasing yield,income,and quality of rice in the region.The application of N,P_(2)O_(5),and K_(2)O at 164,54,126 kg/hm^(2)respectively,combined with the application of ZnSO_(4)·7H_(2)O at 40 kg/hm^(2)in the base fertilizer soil,has the best effect.
作者
李若清
袁嫚嫚
孙义祥
LI Ruo-qing;YUAN Man-man;SUN Yi-xiang(Agriculture and Rural Bureau in Xuanzhou District,Xuancheng City,Xuancheng,Anhui 242000;Institute of Soil and Fertilizer,Anhui Academy of Agricultural Sciences,Hefei,Anhui 230031)
出处
《安徽农业科学》
CAS
2024年第21期134-136,162,共4页
Journal of Anhui Agricultural Sciences
关键词
锌肥
水稻
产量
锌吸收
经济效益
Zinc fertilizer
Rice
Yield
Zinc absorption
Economic benefit
